Improved lubricator for ventilators



H. THOMAS Lubricator Ventilator No. 942% Patented Aug. 31, 1869 I I L. 0I f l l I I I w L I la L: d

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ife't zzeaaew niteil how Letters Pulcnt No. 94,254, dated August 31,1869; untedutcll August 18, 1869.

IMPROVED L'UBRICA'I'OR FOR VENTILATORS.

The Schedule referred. to in these Letters Patent and making part of thesame To all whom it may concern Be it known that 1, HUGE Tnoinas, of thecity, county, and State of New York, have invented a new and improvedLubricator for Ventilators; and I do hereby declare that the followingis a full, clear, and exact description of the same, reference being hadto the accompanying drawings, forming apartof this specification, and inwhich is rcpri'asented a vertical section of a ventilator provided witha lubricator constructed according to my invention.

This invention is more especially designed for chimney-cap ventilators,but is also applicable to other kinds of upright revolving ventilators.

its object is to provide for the more convenient lubricating ofsuch'vontilators, by obviating the necessity of the removal or takingdown of the same for said purpose.

The invention consists in a novel arrangcmentfin combination with thejournals and bearings of such ventilators, of oil-cups, andconnecting-tubes, whereby the same maybe cifectually and convcnicntlylubricatod without requiring the removaTof the ventilator from itsplacc.

In order that others may understand the construction and operation of myinvention, I will proceed to dcscribo it with reference to the drawings.

A is the frame, and B the rotating fan of an ordinary chimney-capventilator, the fan being carried in the usual manner upon a verticalshaft, (1, which is supported between bearings 11 (Fat the bottom andtop of the frame.

Said shaft is or may be of similar construction to that generallycmploycd for that purpose, except that it must be made hollow, therebyforn'iing a tube for the purpose of conducting the oil to a cup, b,arranged at the bottom of the frame A, and in the bottom of which isarranged the lower bearing (1.

Upon the shaft a, near its upper end, and around the upper journal, is])l'()\'ltl(tl an oil-cup, 0, so that oil, when supplicd tln-reto, willlubricate the upper journal and bcaring.

Upon the shaft (I. and around the cup 0, is arranged a larger cup; c, sothat when the oil is made to overtlow said smaller cup, it will hecaught within the larger one, for thc purpose hereinafter explained.

\Vithin the hollow shaft or tube a, at apoint hetwecn the said largerand smaller cups 0 and c is made an opening, c, and near the lowerbcarin'g is also made a similar opening, 0', both communicating with thecentral cavity thereof, so that the oil caught in the larger cup, 0,from the overflowing of the smaller one, is conducted through the saidtube orhollow shaft to the lower cup I); 7

h is a fixed cap or cover for the cups 0 c, rigidly attached to theupper bearing, and designed for the exclusion of dust and other foreignmatter.

f is a tube, having its lower end passed through and secured within thecap or cover of the cups 0 c, and its uppcr cud outwardly and upwardlyextended in a manner as'rcprcscnted in the drawings.

Upon the upper end of this tube f is secured a spring-capped oil-cup, g,which communicates through an opening in its bottom with the hollow inthe tube f, so thatoil, when supplied to said cup, will be conductedinto the smaller cup 0, through said tube.

The oil issupplied to the spring-capped oil-cup y, by any suitablemeans, and an appropriate oiler for the purpose, and the manner ofapplying the same is illustrated by red outlines in the drawings.

The oil thus supplied finds its way through the tube f into the smallercup 0, and lubrioates the upper bearing.

The simplying ot' a sntiicient quantity of oil to the cup y will causethe overflowing of the cup 0, and the surplus oil, being caught by thelarger cup 0', finds its way through the opening 0 into the interior ofthe hollow shaft (1, and out at the lower opening e, into the lower cup7:, thereby lubricating the lower bearing. I l

By this means, the bearings oft-his and other kinds of upright revolvingventilators may be conveniently lubricatcd, and a sufiioient quantity ofoil thereto supplied and rctaincd for lubricatirig-purposes, to last along time, and without necessitating the taking down of the ventilator.

\Vhat I claim as my inveutiomand desire to have secured by LettersPatent, is-

The cups 0, c, and b, in combination with the 1101-- low spindle a,arrangcd for lubricating the upper and lower bearings of said spindle,substantially as shown and described.

HUGH THOMAS.

Witnesses FRED. Haynes, llnxnv PALMER.

